![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
在平面直角坐标系xoy中,已知⊙:x2+(y-2=5,为⊙与x负半轴的交点,过A作⊙的弦AB,记线段AB的中点为M.则直线AB的斜率为()
A.2
B.-3
C.-2
D.3
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
A、2
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.2
B.-3
C.-2
D.3
A、2
A.(4,2)
B.(5,2)
C.(6,2)
D.(5,3)
A.(-2,1)
B.(0,1)
C.(7,-1)
D.(2.5,0)
A.7/25
B.25/7
C.24/25
D.24/7
E.7/24
F.25/24
A.(-1,1)
B.(1,1)
C.(-1,-2)
D.(1,-2)
A.12
B.15
C.24
D.30